diff --git a/contiki/ctk/ctk-draw.c b/contiki/ctk/ctk-draw.c
index 7e0827a..a27d8fc 100644
--- a/contiki/ctk/ctk-draw.c
+++ b/contiki/ctk/ctk-draw.c
@@ -41,9 +41,9 @@
 #include "ctk-draw-service.h"
 
 
-unsigned char ctk_draw_windowborder_width = 1,
-  ctk_draw_windowborder_height = 1,
-  ctk_draw_windowtitle_height = 1;
+unsigned char ctk_draw_windowborder_width,
+  ctk_draw_windowborder_height,
+  ctk_draw_windowtitle_height;
 
 EK_SERVICE(service, CTK_DRAW_SERVICE_NAME);
 
diff --git a/contiki/ek/ek.c b/contiki/ek/ek.c
index d9d313e..e06196e 100644
--- a/contiki/ek/ek.c
+++ b/contiki/ek/ek.c
@@ -132,9 +132,9 @@
  * \internal Pointer to the currently running process structure.
  *
  */
-struct ek_proc *ek_procs = NULL;
+struct ek_proc *ek_procs;
 struct ek_proc *ek_proclist[EK_CONF_MAXPROCS];
-struct ek_proc *ek_current = NULL;
+struct ek_proc *ek_current;
  
 ek_event_t ek_event_quit;
 ek_event_t ek_event_msg;